Sökning: "Köppen climate classification"

Hittade 4 uppsatser innehållade orden Köppen climate classification.

  1. 1. Multitask Convolutional Neural Network Emulators for Global Crop Models - Supervised Deep Learning in Large Hypercubes of Non-IID Data

    Master-uppsats, Lunds universitet/Matematisk statistik

    Författare :Amanda Nilsson; [2020]
    Nyckelord :Multitask Learning; Convolutional Neural Network CNN ; Branched Neural Network; Dynamic Global Vegetation Models DGVM ; Automated Feature Extraction; Feature Importance; Supervised Machine Learning; Emulator; Surrogate Model; Response Surface Model; Approximation Model; Metamodeling; Model Composition; Regularization; Robustness; Hyperparameter Optimization; Mathematics and Statistics;

    Sammanfattning : The aim of this thesis is to establish whether a neural network (NN) can be used for emulation of simulated global crop production - retrieved from the computationally demanding dynamic global vegetation model (DGVM) Lund-Potsdam-Jena General Ecosystem Simulator (LPJ-GUESS). It has been devoted to elaboration with various types of neural network architectures: Branched NNs capable of processing inputs of mixed data types; Convolutional Neural Network (CNN) architectures able to perform automated temporal feature extraction of the given weather time series; simpler fully connected (FC) structures as well as Multitask NNs. LÄS MER

  3. 2. Biology of the diamondback moth (Plutella xylostella) and its future impact in Swedish oilseed rape production : a literature review

    Kandidat-uppsats, SLU/Dept. of Ecology

    Författare :Joakim Hermansson; [2016]
    Nyckelord :diamondback moth; Plutella xylostella; overwintering; climate; canola; oilseed rape; cosmopolitan pest; resistance; Brassica napus;

    Sammanfattning : The biology of the Diamondback moth, Plutella xylostella, and its impact on oilseed rape production is reviewed. The Diamondback moth, DBM, is a serious, migratory, pest and a problem worldwide because its larval stage has a ravenous appetite, which causes major economic losses in Brassica crops. LÄS MER

  4. 3. Steel Sheet Applications and Integrated Heat Management

    Magister-uppsats, Högskolan Dalarna/Energiteknik

    Författare :Parham Ahmadi Moghadam; [2016]
    Nyckelord :Solar chimney; Trombe-wall; Delphi method; Heating; Cooling; natural ventilation; Evaporation cooler; Köppen climate classification; Steel sheet; Energy coating; TRNSYS; Ms Access;

    Sammanfattning : Increasing energy use has caused many environmental problems including global warming. Energy use is growing rapidly in developing countries and surprisingly a remarkable portion of it is associated with consumed energy to keep the temperature comfortable inside the buildings. LÄS MER

  5. 4. Modeling the evolution of wildfire : an analysis of short term wildfire events and their relationship to meteorological variables

    Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Sean Demet; [2014]
    Nyckelord :evolution of wildfire; fire; wildfire; fire radiative power; Ecosystem Analysis; Physical Geography and Ecosystem Sciences; Physical Geography; linear regression modeling; Bayesian Information Criteria; Köppen-Geiger Climate Classification; Earth and Environmental Sciences;

    Sammanfattning : Wildfire events are expected to increase with the changing climate; thereby increasing atmospheric, economic, and anthropogenic impacts. Gaining a real-time understanding of the evolution of wildfire events can benefit regional meteorology models, global atmospheric models, and hazard warning systems. LÄS MER